package lianxi;
class Animal {
    private String name;
    private int age;
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name= name;
    }
    public int getAge(){
        return age;
    }
    public void setAge(int age){
        this.age = age;
    }
}
class Dog extends Animal{

}
public class example401 {
    public static void main (String[] args){
        Dog dog = new Dog();
        dog.setName("牧羊犬");
        dog.setName(String.valueOf(3));
        System.out.println("名称："+dog.getName () +"，年龄："+dog.getAge() );
    }
}
